factorial Program

WAP to write the Factorial series - 

Factorial Number - In mathematics, the factorial of a positive integer n, denoted by n!, is the product of all positive integers less than or equal to n: n!=n·(n-1)·(n-2)·(n-3)·⋯·3·2·1. For example, 5!=5·4·3·2·1=120.

#include<stdio.h>
int main()
 {
   int a,i,f=1;
   printf("Enter the value ");
   scanf("%d",&a);
   for (i=1;i<=a;i++)
    {
      f=f*i; 
    }
    printf("The factorial is %d\n",f);
return 0;
} 

Output -

Enter the value 5
The factorial is 120